Words to Describe nondisjunction

How nondisjunction often is described ("________ nondisjunction")

• maternal
• secondary
• simple
• mitotic
• chromosomal
• somatic
• primary
• spontaneous
• meiotic
• second
• paternal
• induced
• double
• occasional
• related
• male
• successive
• selective
• equational
• human
• random
• dependent
• autosomal